service_antrean/internal/models/patient/ms_patient.go

package patient

import (
	"api-service/internal/models"
	"database/sql"
	"encoding/json"
	"time"
)

// type Date time.Time

// func (d *Date) UnmarshalJSON(b []byte) error {
// 	s := strings.Trim(string(b), "\"")
// 	if s == "" || s == "null" {
// 		*d = Date(time.Time{})
// 		return nil
// 	}
// 	t, err := time.Parse("2006-01-02", s)
// 	if err != nil {
// 		return fmt.Errorf("invalid date format, expected YYYY-MM-DD: %w", err)
// 	}
// 	*d = Date(t)
// 	return nil
// }

// // new: MarshalJSON so responses use "YYYY-MM-DD"
// func (d Date) MarshalJSON() ([]byte, error) {
// 	t := time.Time(d)
// 	if t.IsZero() {
// 		return []byte("null"), nil
// 	}
// 	return []byte("\"" + t.Format("2006-01-02") + "\""), nil
// }

// // new: database/sql/driver.Valuer implementation so DB driver can encode Date
// func (d Date) Value() (driver.Value, error) {
// 	t := time.Time(d)
// 	if t.IsZero() {
// 		return nil, nil
// 	}
// 	// return time.Time so pq/pgx has an encode plan for date/timestamp types
// 	return t, nil
// }

// // new: sql.Scanner implementation so DB rows decode into Date
// func (d *Date) Scan(src interface{}) error {
// 	if src == nil {
// 		*d = Date(time.Time{})
// 		return nil
// 	}
// 	switch v := src.(type) {
// 	case time.Time:
// 		*d = Date(v)
// 		return nil
// 	case []byte:
// 		s := string(v)
// 		if t, err := time.Parse("2006-01-02", s); err == nil {
// 			*d = Date(t)
// 			return nil
// 		}
// 		if t, err := time.Parse(time.RFC3339, s); err == nil {
// 			*d = Date(t)
// 			return nil
// 		}
// 		return fmt.Errorf("cannot parse date from []byte: %s", s)
// 	case string:
// 		s := v
// 		if s == "" {
// 			*d = Date(time.Time{})
// 			return nil
// 		}
// 		if t, err := time.Parse("2006-01-02", s); err == nil {
// 			*d = Date(t)
// 			return nil
// 		}
// 		if t, err := time.Parse(time.RFC3339, s); err == nil {
// 			*d = Date(t)
// 			return nil
// 		}
// 		return fmt.Errorf("cannot parse date from string: %s", s)
// 	default:
// 		return fmt.Errorf("unsupported scan type for Date: %T", src)
// 	}
// }

// func (d Date) ToTime() time.Time {
// 	return time.Time(d)
// }

// Patient represents the data structure for the patient table
// with proper null handling and optimized JSON marshaling
type Patient struct {
	ID                  int64          `json:"id" db:"id"`
	Name                sql.NullString `json:"name,omitempty" db:"name"`
	MedicalRecordNumber sql.NullString `json:"medical_record_number,omitempty" db:"medical_record_number"`
	PhoneNumber         sql.NullString `json:"phone_number,omitempty" db:"phone_number"`
	Gender              sql.NullString `json:"gender,omitempty" db:"gender"`
	BirthDate           sql.NullTime   `json:"birth_date,omitempty" db:"birth_date"`
	Address             sql.NullString `json:"address,omitempty" db:"address"`
	Active              sql.NullBool   `json:"active,omitempty" db:"active"`
	FKSdProvinsiID      sql.NullInt64  `json:"fk_sd_provinsi_id,omitempty" db:"fk_sd_provinsi_id"`
	FKSdKabupatenKotaID sql.NullInt64  `json:"fk_sd_kabupaten_kota_id,omitempty" db:"fk_sd_kabupaten_kota_id"`
	FKSdKecamatanID     sql.NullInt64  `json:"fk_sd_kecamatan_id,omitempty" db:"fk_sd_kecamatan_id"`
	FKSdKelurahanID     sql.NullInt64  `json:"fk_sd_kelurahan_id,omitempty" db:"fk_sd_kelurahan_id"`
	DsSdProvinsi        sql.NullString `json:"ds_sd_provinsi,omitempty" db:"ds_sd_provinsi"`
	DsSdKabupatenKota   sql.NullString `json:"ds_sd_kabupaten_kota,omitempty" db:"ds_sd_kabupaten_kota"`
	DsSdKecamatan       sql.NullString `json:"ds_sd_kecamatan,omitempty" db:"ds_sd_kecamatan"`
	DsSdKelurahan       sql.NullString `json:"ds_sd_kelurahan,omitempty" db:"ds_sd_kelurahan"`
	// ProvinsiName        sql.NullString       `json:"Provinsi,omitempty" db:"Provinsi"`
	// KabupatenKotaName   sql.NullString       `json:"Kabupaten_kota,omitempty" db:"Kabupaten_kota"`
	// KecamatanName       sql.NullString       `json:"Kecamatan,omitempty" db:"Kecamatan"`
	// KelurahanName       sql.NullString       `json:"Desa_kelurahan,omitempty" db:"Desa_kelurahan"`
	Attachments  []PatientAttachment  `json:"attachments,omitempty"`
	PaymentTypes []PatientPaymentType `json:"payment_types,omitempty"`
	Visits       []PatientVisit       `json:"visits,omitempty"`
}

type PatientPaymentType struct {
	ID               int64                `json:"id" db:"id"`
	Name             sql.NullString       `json:"name,omitempty" db:"name"`
	Number           sql.NullString       `json:"number,omitempty" db:"number"`
	Active           sql.NullBool         `json:"active,omitempty" db:"active"`
	FKMsPatientID    models.NullableInt32 `json:"fk_ms_patient_id,omitempty" db:"fk_ms_patient_id"`
	FKRefPaymentType models.NullableInt32 `json:"fk_ref_payment_type,omitempty" db:"fk_ref_payment_type"`
}

type PatientAttachment struct {
	ID            int64                `json:"id" db:"id"`
	Name          sql.NullString       `json:"name,omitempty" db:"name"`
	FileName      sql.NullString       `json:"file_name,omitempty" db:"file_name"`
	Directory     sql.NullString       `json:"directory,omitempty" db:"directory"`
	Active        sql.NullBool         `json:"active,omitempty" db:"active"`
	FKMsPatientID models.NullableInt32 `json:"fk_ms_patient_id,omitempty" db:"fk_ms_patient_id"`
}

type PatientVisit struct {
	ID               int64                `json:"id" db:"id"`
	Barcode          models.NullableInt32 `json:"barcode,omitempty" db:"barcode"`
	RegistrationDate sql.NullTime         `json:"registration_date,omitempty" db:"registration_date"`
	ServiceDate      sql.NullTime         `json:"service_date,omitempty" db:"service_date"`
	CheckInDate      sql.NullTime         `json:"check_in_date,omitempty" db:"check_in_date"`
	CheckIn          sql.NullBool         `json:"check_in,omitempty" db:"check_in"`
	Active           sql.NullBool         `json:"active,omitempty" db:"active"`
	FKMsPatientID    models.NullableInt32 `json:"fk_ms_patient_id,omitempty" db:"fk_ms_patient_id"`
}

// Custom JSON marshaling untuk Patient agar NULL values tidak muncul di response
func (r Patient) MarshalJSON() ([]byte, error) {
	type Alias Patient
	aux := &struct {
		Name                *string `json:"name,omitempty"`
		MedicalRecordNumber *string `json:"medical_record_number,omitempty"`
		PhoneNumber         *string `json:"phone_number,omitempty"`
		Gender              *string `json:"gender,omitempty"`
		BirthDate           *string `json:"birth_date,omitempty"`
		Address             *string `json:"address,omitempty"`
		Active              *bool   `json:"active,omitempty"`
		FKSdProvinsiID      *int    `json:"fk_sd_provinsi_id,omitempty"`
		FKSdKabupatenKotaID *int    `json:"fk_sd_kabupaten_kota_id,omitempty"`
		FKSdKecamatanID     *int    `json:"fk_sd_kecamatan_id,omitempty"`
		FKSdKelurahanID     *int    `json:"fk_sd_kelurahan_id,omitempty"`
		DsSdProvinsi        *string `json:"ds_sd_provinsi,omitempty"`
		DsSdKabupatenKota   *string `json:"ds_sd_kabupaten_kota,omitempty"`
		DsSdKecamatan       *string `json:"ds_sd_kecamatan,omitempty"`
		DsSdKelurahan       *string `json:"ds_sd_kelurahan,omitempty"`
		*Alias
	}{
		Alias: (*Alias)(&r),
	}

	if r.Name.Valid {
		aux.Name = &r.Name.String
	}
	if r.MedicalRecordNumber.Valid {
		aux.MedicalRecordNumber = &r.MedicalRecordNumber.String
	}
	if r.PhoneNumber.Valid {
		aux.PhoneNumber = &r.PhoneNumber.String
	}
	if r.Gender.Valid {
		aux.Gender = &r.Gender.String
	}
	if r.BirthDate.Valid {
		birthDateStr := r.BirthDate.Time.Format("2006-01-02")
		aux.BirthDate = &birthDateStr
	}
	if r.Address.Valid {
		aux.Address = &r.Address.String
	}
	if r.Active.Valid {
		aux.Active = &r.Active.Bool
	}
	if r.FKSdProvinsiID.Valid {
		fksp := int(r.FKSdProvinsiID.Int64)
		aux.FKSdProvinsiID = &fksp
	}
	if r.FKSdKabupatenKotaID.Valid {
		fksk := int(r.FKSdKabupatenKotaID.Int64)
		aux.FKSdKabupatenKotaID = &fksk
	}
	if r.FKSdKecamatanID.Valid {
		fksc := int(r.FKSdKecamatanID.Int64)
		aux.FKSdKecamatanID = &fksc
	}
	if r.FKSdKelurahanID.Valid {
		fksl := int(r.FKSdKelurahanID.Int64)
		aux.FKSdKelurahanID = &fksl
	}
	if r.DsSdProvinsi.Valid {
		aux.DsSdProvinsi = &r.DsSdProvinsi.String
	}
	if r.DsSdKabupatenKota.Valid {
		aux.DsSdKabupatenKota = &r.DsSdKabupatenKota.String
	}
	if r.DsSdKecamatan.Valid {
		aux.DsSdKecamatan = &r.DsSdKecamatan.String
	}
	if r.DsSdKelurahan.Valid {
		aux.DsSdKelurahan = &r.DsSdKelurahan.String
	}

	return json.Marshal(aux)
}

func (r PatientPaymentType) MarshalJSON() ([]byte, error) {
	type Alias PatientPaymentType
	aux := &struct {
		*Alias
		Name             *string `json:"name,omitempty"`
		Number           *string `json:"number,omitempty"`
		Active           *bool   `json:"active,omitempty"`
		FKMsPatientID    *int    `json:"fk_ms_patient_id,omitempty"`
		FKRefPaymentType *int    `json:"fk_ref_payment_type,omitempty"`
	}{
		Alias: (*Alias)(&r),
	}

	if r.Name.Valid {
		aux.Name = &r.Name.String
	}
	if r.Number.Valid {
		aux.Number = &r.Number.String
	}
	if r.Active.Valid {
		aux.Active = &r.Active.Bool
	}
	if r.FKMsPatientID.Valid {
		fkmp := int(r.FKMsPatientID.Int32)
		aux.FKMsPatientID = &fkmp
	}
	if r.FKRefPaymentType.Valid {
		fkrpt := int(r.FKRefPaymentType.Int32)
		aux.FKRefPaymentType = &fkrpt
	}
	return json.Marshal(aux)
}

func (r PatientAttachment) MarshalJSON() ([]byte, error) {
	type Alias PatientAttachment
	aux := &struct {
		*Alias
		Name          *string `json:"name,omitempty"`
		FileName      *string `json:"file_name,omitempty"`
		Directory     *string `json:"directory,omitempty"`
		Active        *bool   `json:"active,omitempty"`
		FKMsPatientID *int    `json:"fk_ms_patient_id,omitempty"`
	}{
		Alias: (*Alias)(&r),
	}

	if r.Name.Valid {
		aux.Name = &r.Name.String
	}
	if r.FileName.Valid {
		aux.FileName = &r.FileName.String
	}
	if r.Directory.Valid {
		aux.Directory = &r.Directory.String
	}
	if r.Active.Valid {
		aux.Active = &r.Active.Bool
	}
	if r.FKMsPatientID.Valid {
		fkmp := int(r.FKMsPatientID.Int32)
		aux.FKMsPatientID = &fkmp
	}
	return json.Marshal(aux)
}

func (r PatientVisit) MarshalJSON() ([]byte, error) {
	type Alias PatientVisit
	aux := &struct {
		*Alias
		Barcode          *int    `json:"barcode,omitempty"`
		RegistrationDate *string `json:"registration_date,omitempty"`
		ServiceDate      *string `json:"service_date,omitempty"`
		CheckInDate      *string `json:"check_in_date,omitempty"`
		CheckIn          *bool   `json:"check_in,omitempty"`
		Active           *bool   `json:"active,omitempty"`
		FKMsPatientID    *int    `json:"fk_ms_patient_id,omitempty"`
	}{
		Alias: (*Alias)(&r),
	}

	if r.Barcode.Valid {
		barcode := int(r.Barcode.Int32)
		aux.Barcode = &barcode
	}
	if r.RegistrationDate.Valid {
		regDateStr := r.RegistrationDate.Time.Format(time.RFC3339)
		aux.RegistrationDate = &regDateStr
	}
	if r.ServiceDate.Valid {
		svcDateStr := r.ServiceDate.Time.Format(time.RFC3339)
		aux.ServiceDate = &svcDateStr
	}
	if r.CheckInDate.Valid {
		checkInDateStr := r.CheckInDate.Time.Format(time.RFC3339)
		aux.CheckInDate = &checkInDateStr
	}
	if r.CheckIn.Valid {
		aux.CheckIn = &r.CheckIn.Bool
	}
	if r.Active.Valid {
		aux.Active = &r.Active.Bool
	}
	if r.FKMsPatientID.Valid {
		fkmp := int(r.FKMsPatientID.Int32)
		aux.FKMsPatientID = &fkmp
	}
	return json.Marshal(aux)
}

// Helper methods untuk mendapatkan nilai yang aman
func (r *Patient) GetName() string {
	if r.Name.Valid {
		return r.Name.String
	}
	return ""
}

// Response struct untuk GET by ID
type PatientGetByIDResponse struct {
	Message string   `json:"message"`
	Data    *Patient `json:"data"`
}

// Enhanced GET response dengan pagination dan aggregation
type PatientGetResponse struct {
	Message string                `json:"message"`
	Data    []Patient             `json:"data"`
	Meta    models.MetaResponse   `json:"meta"`
	Summary *models.AggregateData `json:"summary,omitempty"`
}

// Request struct untuk create
type PatientCreateRequest struct {
	ID                  *int                              `json:"id"`
	Name                *string                           `json:"name" validate:"min=1,max=100"`
	MedicalRecordNumber *string                           `json:"medical_record_number" validate:"min=1,max=20"`
	PhoneNumber         *string                           `json:"phone_number" validate:"min=1,max=20"`
	Gender              *string                           `json:"gender" validate:"max=1"`
	BirthDate           *time.Time                        `json:"birth_date"`
	Address             *string                           `json:"address" validate:"min=1,max=255"`
	Active              *bool                             `json:"active"`
	FKSdProvinsiID      *int                              `json:"fk_sd_provinsi_id"`
	FKSdKabupatenKotaID *int                              `json:"fk_sd_kabupaten_kota_id"`
	FKSdKecamatanID     *int                              `json:"fk_sd_kecamatan_id"`
	FKSdKelurahanID     *int                              `json:"fk_sd_kelurahan_id"`
	DsSdProvinsi        *string                           `json:"ds_sd_provinsi"`
	DsSdKabupatenKota   *string                           `json:"ds_sd_kabupaten_kota"`
	DsSdKecamatan       *string                           `json:"ds_sd_kecamatan"`
	DsSdKelurahan       *string                           `json:"ds_sd_kelurahan"`
	Attachments         []PatientAttachmentCreateRequest  `json:"attachments,omitempty"`
	Payments            []PatientPaymentTypeCreateRequest `json:"payment_types,omitempty"`
	Visits              []VisitCreateRequest              `json:"visits,omitempty"`
}

type VisitCreateRequest struct {
	// ID               *int       `json:"id"`
	Barcode          *int32     `json:"barcode" validate:"omitempty,min=1"`
	RegistrationDate *time.Time `json:"registration_date" validate:"omitempty"`
	ServiceDate      *time.Time `json:"service_date" validate:"omitempty"`
	CheckInDate      *time.Time `json:"check_in_date" validate:"omitempty"`
	CheckIn          *bool      `json:"check_in" validate:"omitempty"`
	Active           *bool      `json:"active" validate:"omitempty"`
}

type VisitUpdateRequest struct {
	ID               *int       `json:"id" validate:"required"`
	Barcode          *int32     `json:"barcode" validate:"omitempty,min=1"`
	RegistrationDate *time.Time `json:"registration_date" validate:"omitempty"`
	ServiceDate      *time.Time `json:"service_date" validate:"omitempty"`
	CheckInDate      *time.Time `json:"check_in_date" validate:"omitempty"`
	CheckIn          *bool      `json:"check_in" validate:"omitempty"`
	Active           *bool      `json:"active" validate:"omitempty"`
}

type PatientPostRequest struct {
	// ID int64 `json:"id" validate:"required"`
	MedicalRecordNumber string `json:"medical_record_number" validate:"required,min=1"`
}

// Response struct untuk create
type PatientCreateResponse struct {
	Message string   `json:"message"`
	Data    *Patient `json:"data"`
}

// Update request
type PatientUpdateRequest struct {
	// ID                  *int                              `json:"-" validate:"required,min=1"`
	Name                *string                           `json:"name"`
	MedicalRecordNumber *string                           `json:"medical_record_number" validate:"required,min=1,max=20"`
	PhoneNumber         *string                           `json:"phone_number"`
	Gender              *string                           `json:"gender"`
	BirthDate           *time.Time                        `json:"birth_date"`
	Address             *string                           `json:"address"`
	Active              *bool                             `json:"active"`
	FKSdProvinsiID      *int                              `json:"fk_sd_provinsi_id"`
	FKSdKabupatenKotaID *int                              `json:"fk_sd_kabupaten_kota_id"`
	FKSdKecamatanID     *int                              `json:"fk_sd_kecamatan_id"`
	FKSdKelurahanID     *int                              `json:"fk_sd_kelurahan_id"`
	DsSdProvinsi        *string                           `json:"ds_sd_provinsi"`
	DsSdKabupatenKota   *string                           `json:"ds_sd_kabupaten_kota"`
	DsSdKecamatan       *string                           `json:"ds_sd_kecamatan"`
	DsSdKelurahan       *string                           `json:"ds_sd_kelurahan"`
	Attachments         []PatientAttachmentUpdateRequest  `json:"attachments,omitempty"`
	Payments            []PatientPaymentTypeUpdateRequest `json:"payment_types,omitempty"`
	Visits              []VisitUpdateRequest              `json:"visits,omitempty"`
}

type PatientAttachmentCreateRequest struct {
	// ID        *int    `json:"id,omitempty"`
	Name      *string `json:"name" validate:"omitempty,min=1,max=20"`
	FileName  *string `json:"file_name" validate:"omitempty,min=1,max=20"`
	Directory *string `json:"directory" validate:"omitempty,min=1,max=255"`
	Active    *bool   `json:"active" validate:"omitempty"`
}

type PatientPaymentTypeCreateRequest struct {
	// ID               *int    `json:"id,omitempty"`
	Name             *string `json:"name" validate:"omitempty,min=1,max=20"`
	Number           *string `json:"number" validate:"omitempty,min=1,max=20"`
	Active           *bool   `json:"active" validate:"omitempty"`
	FKRefPaymentType *int    `json:"fk_ref_payment_type" validate:"omitempty,min=1"`
}

type PatientAttachmentUpdateRequest struct {
	ID        *int    `json:"id" validate:"required"`
	Name      *string `json:"name" validate:"omitempty,min=1,max=20"`
	FileName  *string `json:"file_name" validate:"omitempty,min=1,max=20"`
	Directory *string `json:"directory" validate:"omitempty,min=1,max=255"`
	Active    *bool   `json:"active" validate:"omitempty"`
}

type PatientPaymentTypeUpdateRequest struct {
	ID               *int    `json:"id" validate:"required"`
	Name             *string `json:"name" validate:"omitempty,min=1,max=20"`
	Number           *string `json:"number" validate:"omitempty,min=1,max=20"`
	Active           *bool   `json:"active" validate:"omitempty"`
	FkRefPaymentType *int    `json:"fk_ref_payment_type" validate:"omitempty,min=1"`
}

// Response struct untuk update
type PatientUpdateResponse struct {
	Message string   `json:"message"`
	Data    *Patient `json:"data"`
}

// Response struct untuk delete
type PatientDeleteResponse struct {
	Message             string `json:"message"`
	ID                  string `json:"id"`
	MedicalRecordNumber string `json:"medical_record_number"`
}

// Filter struct untuk query parameters
type PatientFilter struct {
	Status   *string    `json:"status,omitempty" form:"status"`
	Search   *string    `json:"search,omitempty" form:"search"`
	DateFrom *time.Time `json:"date_from,omitempty" form:"date_from"`
	DateTo   *time.Time `json:"date_to,omitempty" form:"date_to"`
}